Noise levels

Initially attempt was made to test noise levels using a microphone fitted to a DER Lenovo laptop computer. A microphone was connected to the computer and the program Audacity us3ed to capture and measure sound levels in three places:
behind the Sydney Aquarium
Millers Point
Waslsh Bay

The micriophone used wasn't sensitive enough to sample ambient moise so after the field study was completed the testing was repeated using a Digitech Micro Sound Level Meter. This device measures sound levels from 40 dB to 130 dB. The expression dB stands for decibel which is a standard unit for measuring sound.

Millers Point

Here the reading was 56.2dB decibel owing to the absencver of through traffic.
Some distant construction and traffic noise was audible.
It was a windy day, so there was some wind noise because this location is on the top of a hill

Behind Sydney Aquarium

Here the reading was 73dB decibel owing to the large volume of traffic passing behind the Aquarium

Walsh Bay

Here the reading was 53dB decibel owing to the absencver of through traffic, construction noise and
its sheltered location in the windy conditions on the day.